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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
572e2857 | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
34dc7c2f BB |
23 | */ |
24 | ||
60101509 | 25 | |
34dc7c2f BB |
26 | #include <sys/types.h> |
27 | #include <sys/param.h> | |
28 | #include <sys/systm.h> | |
29 | #include <sys/sysmacros.h> | |
30 | #include <sys/cmn_err.h> | |
31 | #include <sys/kmem.h> | |
32 | #include <sys/thread.h> | |
33 | #include <sys/file.h> | |
34 | #include <sys/vfs.h> | |
35 | #include <sys/zfs_znode.h> | |
36 | #include <sys/zfs_dir.h> | |
37 | #include <sys/zil.h> | |
38 | #include <sys/zil_impl.h> | |
39 | #include <sys/byteorder.h> | |
40 | #include <sys/policy.h> | |
41 | #include <sys/stat.h> | |
42 | #include <sys/mode.h> | |
43 | #include <sys/acl.h> | |
44 | #include <sys/dmu.h> | |
45 | #include <sys/spa.h> | |
46 | #include <sys/zfs_fuid.h> | |
47 | #include <sys/ddi.h> | |
fb5f0bc8 BB |
48 | #include <sys/dsl_dataset.h> |
49 | ||
34dc7c2f | 50 | /* |
fb5f0bc8 BB |
51 | * These zfs_log_* functions must be called within a dmu tx, in one |
52 | * of 2 contexts depending on zilog->z_replay: | |
53 | * | |
54 | * Non replay mode | |
55 | * --------------- | |
56 | * We need to record the transaction so that if it is committed to | |
57 | * the Intent Log then it can be replayed. An intent log transaction | |
58 | * structure (itx_t) is allocated and all the information necessary to | |
59 | * possibly replay the transaction is saved in it. The itx is then assigned | |
60 | * a sequence number and inserted in the in-memory list anchored in the zilog. | |
61 | * | |
62 | * Replay mode | |
63 | * ----------- | |
64 | * We need to mark the intent log record as replayed in the log header. | |
65 | * This is done in the same transaction as the replay so that they | |
66 | * commit atomically. | |
34dc7c2f BB |
67 | */ |
68 | ||
69 | int | |
70 | zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap) | |
71 | { | |
5484965a | 72 | int isxvattr = (vap->va_mask & ATTR_XVATTR); |
34dc7c2f BB |
73 | switch (type) { |
74 | case Z_FILE: | |
75 | if (vsecp == NULL && !isxvattr) | |
76 | return (TX_CREATE); | |
77 | if (vsecp && isxvattr) | |
78 | return (TX_CREATE_ACL_ATTR); | |
79 | if (vsecp) | |
80 | return (TX_CREATE_ACL); | |
81 | else | |
82 | return (TX_CREATE_ATTR); | |
83 | /*NOTREACHED*/ | |
84 | case Z_DIR: | |
85 | if (vsecp == NULL && !isxvattr) | |
86 | return (TX_MKDIR); | |
87 | if (vsecp && isxvattr) | |
88 | return (TX_MKDIR_ACL_ATTR); | |
89 | if (vsecp) | |
90 | return (TX_MKDIR_ACL); | |
91 | else | |
92 | return (TX_MKDIR_ATTR); | |
93 | case Z_XATTRDIR: | |
94 | return (TX_MKXATTR); | |
95 | } | |
96 | ASSERT(0); | |
97 | return (TX_MAX_TYPE); | |
98 | } | |
99 | ||
100 | /* | |
101 | * build up the log data necessary for logging xvattr_t | |
102 | * First lr_attr_t is initialized. following the lr_attr_t | |
103 | * is the mapsize and attribute bitmap copied from the xvattr_t. | |
104 | * Following the bitmap and bitmapsize two 64 bit words are reserved | |
105 | * for the create time which may be set. Following the create time | |
106 | * records a single 64 bit integer which has the bits to set on | |
107 | * replay for the xvattr. | |
108 | */ | |
109 | static void | |
110 | zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap) | |
111 | { | |
112 | uint32_t *bitmap; | |
113 | uint64_t *attrs; | |
114 | uint64_t *crtime; | |
115 | xoptattr_t *xoap; | |
116 | void *scanstamp; | |
117 | int i; | |
118 | ||
119 | xoap = xva_getxoptattr(xvap); | |
120 | ASSERT(xoap); | |
121 | ||
122 | lrattr->lr_attr_masksize = xvap->xva_mapsize; | |
123 | bitmap = &lrattr->lr_attr_bitmap; | |
124 | for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) { | |
125 | *bitmap = xvap->xva_reqattrmap[i]; | |
126 | } | |
127 | ||
128 | /* Now pack the attributes up in a single uint64_t */ | |
129 | attrs = (uint64_t *)bitmap; | |
130 | crtime = attrs + 1; | |
131 | scanstamp = (caddr_t)(crtime + 2); | |
132 | *attrs = 0; | |
133 | if (XVA_ISSET_REQ(xvap, XAT_READONLY)) | |
134 | *attrs |= (xoap->xoa_readonly == 0) ? 0 : | |
135 | XAT0_READONLY; | |
136 | if (XVA_ISSET_REQ(xvap, XAT_HIDDEN)) | |
137 | *attrs |= (xoap->xoa_hidden == 0) ? 0 : | |
138 | XAT0_HIDDEN; | |
139 | if (XVA_ISSET_REQ(xvap, XAT_SYSTEM)) | |
140 | *attrs |= (xoap->xoa_system == 0) ? 0 : | |
141 | XAT0_SYSTEM; | |
142 | if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE)) | |
143 | *attrs |= (xoap->xoa_archive == 0) ? 0 : | |
144 | XAT0_ARCHIVE; | |
145 | if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE)) | |
146 | *attrs |= (xoap->xoa_immutable == 0) ? 0 : | |
147 | XAT0_IMMUTABLE; | |
148 | if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK)) | |
149 | *attrs |= (xoap->xoa_nounlink == 0) ? 0 : | |
150 | XAT0_NOUNLINK; | |
151 | if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY)) | |
152 | *attrs |= (xoap->xoa_appendonly == 0) ? 0 : | |
153 | XAT0_APPENDONLY; | |
154 | if (XVA_ISSET_REQ(xvap, XAT_OPAQUE)) | |
155 | *attrs |= (xoap->xoa_opaque == 0) ? 0 : | |
156 | XAT0_APPENDONLY; | |
157 | if (XVA_ISSET_REQ(xvap, XAT_NODUMP)) | |
158 | *attrs |= (xoap->xoa_nodump == 0) ? 0 : | |
159 | XAT0_NODUMP; | |
160 | if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED)) | |
161 | *attrs |= (xoap->xoa_av_quarantined == 0) ? 0 : | |
162 | XAT0_AV_QUARANTINED; | |
163 | if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED)) | |
164 | *attrs |= (xoap->xoa_av_modified == 0) ? 0 : | |
165 | XAT0_AV_MODIFIED; | |
166 | if (XVA_ISSET_REQ(xvap, XAT_CREATETIME)) | |
167 | ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime); | |
168 | if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP)) | |
169 | bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ); | |
428870ff BB |
170 | if (XVA_ISSET_REQ(xvap, XAT_REPARSE)) |
171 | *attrs |= (xoap->xoa_reparse == 0) ? 0 : | |
172 | XAT0_REPARSE; | |
572e2857 BB |
173 | if (XVA_ISSET_REQ(xvap, XAT_OFFLINE)) |
174 | *attrs |= (xoap->xoa_offline == 0) ? 0 : | |
175 | XAT0_OFFLINE; | |
176 | if (XVA_ISSET_REQ(xvap, XAT_SPARSE)) | |
177 | *attrs |= (xoap->xoa_sparse == 0) ? 0 : | |
178 | XAT0_SPARSE; | |
34dc7c2f BB |
179 | } |
180 | ||
181 | static void * | |
182 | zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start) | |
183 | { | |
184 | zfs_fuid_t *zfuid; | |
185 | uint64_t *fuidloc = start; | |
186 | ||
187 | /* First copy in the ACE FUIDs */ | |
188 | for (zfuid = list_head(&fuidp->z_fuids); zfuid; | |
189 | zfuid = list_next(&fuidp->z_fuids, zfuid)) { | |
190 | *fuidloc++ = zfuid->z_logfuid; | |
191 | } | |
192 | return (fuidloc); | |
193 | } | |
194 | ||
195 | ||
196 | static void * | |
197 | zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start) | |
198 | { | |
199 | zfs_fuid_domain_t *zdomain; | |
200 | ||
201 | /* now copy in the domain info, if any */ | |
202 | if (fuidp->z_domain_str_sz != 0) { | |
203 | for (zdomain = list_head(&fuidp->z_domains); zdomain; | |
204 | zdomain = list_next(&fuidp->z_domains, zdomain)) { | |
205 | bcopy((void *)zdomain->z_domain, start, | |
206 | strlen(zdomain->z_domain) + 1); | |
207 | start = (caddr_t)start + | |
208 | strlen(zdomain->z_domain) + 1; | |
209 | } | |
210 | } | |
211 | return (start); | |
212 | } | |
213 | ||
214 | /* | |
a08ee875 LG |
215 | * Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and |
216 | * TK_MKXATTR transactions. | |
34dc7c2f BB |
217 | * |
218 | * TX_CREATE and TX_MKDIR are standard creates, but they may have FUID | |
219 | * domain information appended prior to the name. In this case the | |
220 | * uid/gid in the log record will be a log centric FUID. | |
221 | * | |
222 | * TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that | |
223 | * may contain attributes, ACL and optional fuid information. | |
224 | * | |
225 | * TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify | |
226 | * and ACL and normal users/groups in the ACEs. | |
227 | * | |
228 | * There may be an optional xvattr attribute information similar | |
229 | * to zfs_log_setattr. | |
230 | * | |
231 | * Also, after the file name "domain" strings may be appended. | |
232 | */ | |
233 | void | |
234 | zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
235 | znode_t *dzp, znode_t *zp, char *name, vsecattr_t *vsecp, | |
236 | zfs_fuid_info_t *fuidp, vattr_t *vap) | |
237 | { | |
238 | itx_t *itx; | |
34dc7c2f BB |
239 | lr_create_t *lr; |
240 | lr_acl_create_t *lracl; | |
5484965a | 241 | size_t aclsize = 0; |
34dc7c2f BB |
242 | size_t xvatsize = 0; |
243 | size_t txsize; | |
a08ee875 | 244 | xvattr_t *xvap = (xvattr_t *)vap; |
34dc7c2f BB |
245 | void *end; |
246 | size_t lrsize; | |
34dc7c2f BB |
247 | size_t namesize = strlen(name) + 1; |
248 | size_t fuidsz = 0; | |
249 | ||
428870ff | 250 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
251 | return; |
252 | ||
253 | /* | |
254 | * If we have FUIDs present then add in space for | |
255 | * domains and ACE fuid's if any. | |
256 | */ | |
257 | if (fuidp) { | |
258 | fuidsz += fuidp->z_domain_str_sz; | |
259 | fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t); | |
260 | } | |
261 | ||
5484965a | 262 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
263 | xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize); |
264 | ||
265 | if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR || | |
266 | (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR || | |
267 | (int)txtype == TX_MKXATTR) { | |
268 | txsize = sizeof (*lr) + namesize + fuidsz + xvatsize; | |
269 | lrsize = sizeof (*lr); | |
270 | } else { | |
34dc7c2f BB |
271 | txsize = |
272 | sizeof (lr_acl_create_t) + namesize + fuidsz + | |
273 | ZIL_ACE_LENGTH(aclsize) + xvatsize; | |
274 | lrsize = sizeof (lr_acl_create_t); | |
275 | } | |
276 | ||
277 | itx = zil_itx_create(txtype, txsize); | |
278 | ||
279 | lr = (lr_create_t *)&itx->itx_lr; | |
280 | lr->lr_doid = dzp->z_id; | |
281 | lr->lr_foid = zp->z_id; | |
428870ff BB |
282 | lr->lr_mode = zp->z_mode; |
283 | if (!IS_EPHEMERAL(zp->z_uid)) { | |
284 | lr->lr_uid = (uint64_t)zp->z_uid; | |
34dc7c2f BB |
285 | } else { |
286 | lr->lr_uid = fuidp->z_fuid_owner; | |
287 | } | |
428870ff BB |
288 | if (!IS_EPHEMERAL(zp->z_gid)) { |
289 | lr->lr_gid = (uint64_t)zp->z_gid; | |
34dc7c2f BB |
290 | } else { |
291 | lr->lr_gid = fuidp->z_fuid_group; | |
292 | } | |
633e8030 | 293 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 294 | sizeof (uint64_t)); |
633e8030 | 295 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff BB |
296 | lr->lr_crtime, sizeof (uint64_t) * 2); |
297 | ||
633e8030 | 298 | if (sa_lookup(zp->z_sa_hdl, SA_ZPL_RDEV(ZTOZSB(zp)), &lr->lr_rdev, |
428870ff BB |
299 | sizeof (lr->lr_rdev)) != 0) |
300 | lr->lr_rdev = 0; | |
34dc7c2f BB |
301 | |
302 | /* | |
303 | * Fill in xvattr info if any | |
304 | */ | |
5484965a | 305 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
306 | zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap); |
307 | end = (caddr_t)lr + lrsize + xvatsize; | |
308 | } else { | |
309 | end = (caddr_t)lr + lrsize; | |
310 | } | |
311 | ||
312 | /* Now fill in any ACL info */ | |
313 | ||
314 | if (vsecp) { | |
315 | lracl = (lr_acl_create_t *)&itx->itx_lr; | |
316 | lracl->lr_aclcnt = vsecp->vsa_aclcnt; | |
317 | lracl->lr_acl_bytes = aclsize; | |
318 | lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
319 | lracl->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
320 | if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS) | |
321 | lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
322 | else | |
323 | lracl->lr_acl_flags = 0; | |
324 | ||
325 | bcopy(vsecp->vsa_aclentp, end, aclsize); | |
326 | end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize); | |
327 | } | |
328 | ||
329 | /* drop in FUID info */ | |
330 | if (fuidp) { | |
331 | end = zfs_log_fuid_ids(fuidp, end); | |
332 | end = zfs_log_fuid_domains(fuidp, end); | |
333 | } | |
334 | /* | |
335 | * Now place file name in log record | |
336 | */ | |
337 | bcopy(name, end, namesize); | |
338 | ||
572e2857 | 339 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
340 | } |
341 | ||
342 | /* | |
a08ee875 | 343 | * Handles both TX_REMOVE and TX_RMDIR transactions. |
34dc7c2f BB |
344 | */ |
345 | void | |
346 | zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
572e2857 | 347 | znode_t *dzp, char *name, uint64_t foid) |
34dc7c2f BB |
348 | { |
349 | itx_t *itx; | |
34dc7c2f BB |
350 | lr_remove_t *lr; |
351 | size_t namesize = strlen(name) + 1; | |
352 | ||
428870ff | 353 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
354 | return; |
355 | ||
356 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
357 | lr = (lr_remove_t *)&itx->itx_lr; | |
358 | lr->lr_doid = dzp->z_id; | |
359 | bcopy(name, (char *)(lr + 1), namesize); | |
360 | ||
572e2857 BB |
361 | itx->itx_oid = foid; |
362 | ||
363 | zil_itx_assign(zilog, itx, tx); | |
34dc7c2f BB |
364 | } |
365 | ||
366 | /* | |
a08ee875 | 367 | * Handles TX_LINK transactions. |
34dc7c2f BB |
368 | */ |
369 | void | |
370 | zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
371 | znode_t *dzp, znode_t *zp, char *name) | |
372 | { | |
373 | itx_t *itx; | |
34dc7c2f BB |
374 | lr_link_t *lr; |
375 | size_t namesize = strlen(name) + 1; | |
376 | ||
428870ff | 377 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
378 | return; |
379 | ||
380 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize); | |
381 | lr = (lr_link_t *)&itx->itx_lr; | |
382 | lr->lr_doid = dzp->z_id; | |
383 | lr->lr_link_obj = zp->z_id; | |
384 | bcopy(name, (char *)(lr + 1), namesize); | |
385 | ||
572e2857 | 386 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
387 | } |
388 | ||
389 | /* | |
a08ee875 | 390 | * Handles TX_SYMLINK transactions. |
34dc7c2f BB |
391 | */ |
392 | void | |
393 | zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
394 | znode_t *dzp, znode_t *zp, char *name, char *link) | |
395 | { | |
396 | itx_t *itx; | |
34dc7c2f BB |
397 | lr_create_t *lr; |
398 | size_t namesize = strlen(name) + 1; | |
399 | size_t linksize = strlen(link) + 1; | |
400 | ||
428870ff | 401 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
402 | return; |
403 | ||
404 | itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize); | |
405 | lr = (lr_create_t *)&itx->itx_lr; | |
406 | lr->lr_doid = dzp->z_id; | |
407 | lr->lr_foid = zp->z_id; | |
428870ff BB |
408 | lr->lr_uid = zp->z_uid; |
409 | lr->lr_gid = zp->z_gid; | |
410 | lr->lr_mode = zp->z_mode; | |
3558fd73 | 411 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(ZTOZSB(zp)), &lr->lr_gen, |
428870ff | 412 | sizeof (uint64_t)); |
3558fd73 | 413 | (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_CRTIME(ZTOZSB(zp)), |
428870ff | 414 | lr->lr_crtime, sizeof (uint64_t) * 2); |
34dc7c2f BB |
415 | bcopy(name, (char *)(lr + 1), namesize); |
416 | bcopy(link, (char *)(lr + 1) + namesize, linksize); | |
417 | ||
572e2857 | 418 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
419 | } |
420 | ||
421 | /* | |
a08ee875 | 422 | * Handles TX_RENAME transactions. |
34dc7c2f BB |
423 | */ |
424 | void | |
425 | zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, | |
426 | znode_t *sdzp, char *sname, znode_t *tdzp, char *dname, znode_t *szp) | |
427 | { | |
428 | itx_t *itx; | |
34dc7c2f BB |
429 | lr_rename_t *lr; |
430 | size_t snamesize = strlen(sname) + 1; | |
431 | size_t dnamesize = strlen(dname) + 1; | |
432 | ||
428870ff | 433 | if (zil_replaying(zilog, tx)) |
34dc7c2f BB |
434 | return; |
435 | ||
436 | itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize); | |
437 | lr = (lr_rename_t *)&itx->itx_lr; | |
438 | lr->lr_sdoid = sdzp->z_id; | |
439 | lr->lr_tdoid = tdzp->z_id; | |
440 | bcopy(sname, (char *)(lr + 1), snamesize); | |
441 | bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize); | |
572e2857 | 442 | itx->itx_oid = szp->z_id; |
34dc7c2f | 443 | |
572e2857 | 444 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
445 | } |
446 | ||
447 | /* | |
a08ee875 LG |
448 | * zfs_log_write() handles TX_WRITE transactions. The specified callback is |
449 | * called as soon as the write is on stable storage (be it via a DMU sync or a | |
450 | * ZIL commit). | |
34dc7c2f | 451 | */ |
15fd2749 | 452 | long zfs_immediate_write_sz = 32768; |
34dc7c2f | 453 | |
34dc7c2f BB |
454 | void |
455 | zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
a08ee875 LG |
456 | znode_t *zp, offset_t off, ssize_t resid, int ioflag, |
457 | zil_callback_t callback, void *callback_data) | |
34dc7c2f BB |
458 | { |
459 | itx_wr_state_t write_state; | |
460 | boolean_t slogging; | |
d5446cfc | 461 | uintptr_t fsync_cnt; |
428870ff | 462 | ssize_t immediate_write_sz; |
34dc7c2f | 463 | |
a08ee875 LG |
464 | if (zil_replaying(zilog, tx) || zp->z_unlinked) { |
465 | if (callback != NULL) | |
466 | callback(callback_data); | |
34dc7c2f | 467 | return; |
a08ee875 | 468 | } |
34dc7c2f | 469 | |
428870ff | 470 | immediate_write_sz = (zilog->zl_logbias == ZFS_LOGBIAS_THROUGHPUT) |
15fd2749 | 471 | ? 0 : (ssize_t)zfs_immediate_write_sz; |
fb5f0bc8 | 472 | |
428870ff BB |
473 | slogging = spa_has_slogs(zilog->zl_spa) && |
474 | (zilog->zl_logbias == ZFS_LOGBIAS_LATENCY); | |
475 | if (resid > immediate_write_sz && !slogging && resid <= zp->z_blksz) | |
34dc7c2f BB |
476 | write_state = WR_INDIRECT; |
477 | else if (ioflag & (FSYNC | FDSYNC)) | |
478 | write_state = WR_COPIED; | |
479 | else | |
480 | write_state = WR_NEED_COPY; | |
481 | ||
d5446cfc BB |
482 | if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) { |
483 | (void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1)); | |
484 | } | |
485 | ||
34dc7c2f BB |
486 | while (resid) { |
487 | itx_t *itx; | |
488 | lr_write_t *lr; | |
489 | ssize_t len; | |
490 | ||
491 | /* | |
b128c09f | 492 | * If the write would overflow the largest block then split it. |
34dc7c2f | 493 | */ |
b128c09f | 494 | if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA) |
34dc7c2f BB |
495 | len = SPA_MAXBLOCKSIZE >> 1; |
496 | else | |
497 | len = resid; | |
498 | ||
499 | itx = zil_itx_create(txtype, sizeof (*lr) + | |
500 | (write_state == WR_COPIED ? len : 0)); | |
501 | lr = (lr_write_t *)&itx->itx_lr; | |
3558fd73 | 502 | if (write_state == WR_COPIED && dmu_read(ZTOZSB(zp)->z_os, |
9babb374 | 503 | zp->z_id, off, len, lr + 1, DMU_READ_NO_PREFETCH) != 0) { |
428870ff | 504 | zil_itx_destroy(itx); |
34dc7c2f BB |
505 | itx = zil_itx_create(txtype, sizeof (*lr)); |
506 | lr = (lr_write_t *)&itx->itx_lr; | |
507 | write_state = WR_NEED_COPY; | |
508 | } | |
509 | ||
510 | itx->itx_wr_state = write_state; | |
511 | if (write_state == WR_NEED_COPY) | |
512 | itx->itx_sod += len; | |
513 | lr->lr_foid = zp->z_id; | |
514 | lr->lr_offset = off; | |
515 | lr->lr_length = len; | |
516 | lr->lr_blkoff = 0; | |
517 | BP_ZERO(&lr->lr_blkptr); | |
518 | ||
3558fd73 | 519 | itx->itx_private = ZTOZSB(zp); |
34dc7c2f | 520 | |
d5446cfc BB |
521 | if (!(ioflag & (FSYNC | FDSYNC)) && (zp->z_sync_cnt == 0) && |
522 | (fsync_cnt == 0)) | |
34dc7c2f BB |
523 | itx->itx_sync = B_FALSE; |
524 | ||
a08ee875 LG |
525 | itx->itx_callback = callback; |
526 | itx->itx_callback_data = callback_data; | |
572e2857 | 527 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
528 | |
529 | off += len; | |
530 | resid -= len; | |
531 | } | |
532 | } | |
533 | ||
534 | /* | |
a08ee875 | 535 | * Handles TX_TRUNCATE transactions. |
34dc7c2f BB |
536 | */ |
537 | void | |
538 | zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, | |
539 | znode_t *zp, uint64_t off, uint64_t len) | |
540 | { | |
541 | itx_t *itx; | |
34dc7c2f BB |
542 | lr_truncate_t *lr; |
543 | ||
428870ff | 544 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
545 | return; |
546 | ||
547 | itx = zil_itx_create(txtype, sizeof (*lr)); | |
548 | lr = (lr_truncate_t *)&itx->itx_lr; | |
549 | lr->lr_foid = zp->z_id; | |
550 | lr->lr_offset = off; | |
551 | lr->lr_length = len; | |
552 | ||
553 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 554 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
555 | } |
556 | ||
557 | /* | |
a08ee875 | 558 | * Handles TX_SETATTR transactions. |
34dc7c2f BB |
559 | */ |
560 | void | |
5484965a BB |
561 | zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, |
562 | znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp) | |
34dc7c2f BB |
563 | { |
564 | itx_t *itx; | |
34dc7c2f BB |
565 | lr_setattr_t *lr; |
566 | xvattr_t *xvap = (xvattr_t *)vap; | |
567 | size_t recsize = sizeof (lr_setattr_t); | |
568 | void *start; | |
569 | ||
428870ff | 570 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
34dc7c2f BB |
571 | return; |
572 | ||
573 | /* | |
574 | * If XVATTR set, then log record size needs to allow | |
575 | * for lr_attr_t + xvattr mask, mapsize and create time | |
576 | * plus actual attribute values | |
577 | */ | |
5484965a | 578 | if (vap->va_mask & ATTR_XVATTR) |
34dc7c2f BB |
579 | recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize); |
580 | ||
581 | if (fuidp) | |
582 | recsize += fuidp->z_domain_str_sz; | |
583 | ||
584 | itx = zil_itx_create(txtype, recsize); | |
585 | lr = (lr_setattr_t *)&itx->itx_lr; | |
586 | lr->lr_foid = zp->z_id; | |
587 | lr->lr_mask = (uint64_t)mask_applied; | |
5484965a BB |
588 | lr->lr_mode = (uint64_t)vap->va_mode; |
589 | if ((mask_applied & ATTR_UID) && IS_EPHEMERAL(vap->va_uid)) | |
34dc7c2f BB |
590 | lr->lr_uid = fuidp->z_fuid_owner; |
591 | else | |
5484965a | 592 | lr->lr_uid = (uint64_t)vap->va_uid; |
34dc7c2f | 593 | |
5484965a | 594 | if ((mask_applied & ATTR_GID) && IS_EPHEMERAL(vap->va_gid)) |
34dc7c2f BB |
595 | lr->lr_gid = fuidp->z_fuid_group; |
596 | else | |
5484965a | 597 | lr->lr_gid = (uint64_t)vap->va_gid; |
34dc7c2f | 598 | |
5484965a BB |
599 | lr->lr_size = (uint64_t)vap->va_size; |
600 | ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime); | |
601 | ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime); | |
34dc7c2f | 602 | start = (lr_setattr_t *)(lr + 1); |
5484965a | 603 | if (vap->va_mask & ATTR_XVATTR) { |
34dc7c2f BB |
604 | zfs_log_xvattr((lr_attr_t *)start, xvap); |
605 | start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize); | |
606 | } | |
607 | ||
608 | /* | |
609 | * Now stick on domain information if any on end | |
610 | */ | |
611 | ||
612 | if (fuidp) | |
613 | (void) zfs_log_fuid_domains(fuidp, start); | |
614 | ||
615 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 616 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f BB |
617 | } |
618 | ||
619 | /* | |
a08ee875 | 620 | * Handles TX_ACL transactions. |
34dc7c2f BB |
621 | */ |
622 | void | |
623 | zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, | |
624 | vsecattr_t *vsecp, zfs_fuid_info_t *fuidp) | |
625 | { | |
626 | itx_t *itx; | |
34dc7c2f BB |
627 | lr_acl_v0_t *lrv0; |
628 | lr_acl_t *lr; | |
629 | int txtype; | |
630 | int lrsize; | |
631 | size_t txsize; | |
632 | size_t aclbytes = vsecp->vsa_aclentsz; | |
633 | ||
428870ff | 634 | if (zil_replaying(zilog, tx) || zp->z_unlinked) |
b128c09f BB |
635 | return; |
636 | ||
3558fd73 | 637 | txtype = (ZTOZSB(zp)->z_version < ZPL_VERSION_FUID) ? |
34dc7c2f BB |
638 | TX_ACL_V0 : TX_ACL; |
639 | ||
640 | if (txtype == TX_ACL) | |
641 | lrsize = sizeof (*lr); | |
642 | else | |
643 | lrsize = sizeof (*lrv0); | |
644 | ||
34dc7c2f BB |
645 | txsize = lrsize + |
646 | ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) + | |
647 | (fuidp ? fuidp->z_domain_str_sz : 0) + | |
b128c09f | 648 | sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0); |
34dc7c2f BB |
649 | |
650 | itx = zil_itx_create(txtype, txsize); | |
651 | ||
652 | lr = (lr_acl_t *)&itx->itx_lr; | |
653 | lr->lr_foid = zp->z_id; | |
654 | if (txtype == TX_ACL) { | |
655 | lr->lr_acl_bytes = aclbytes; | |
656 | lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0; | |
657 | lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0; | |
658 | if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS) | |
659 | lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags; | |
660 | else | |
661 | lr->lr_acl_flags = 0; | |
662 | } | |
663 | lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt; | |
664 | ||
665 | if (txtype == TX_ACL_V0) { | |
666 | lrv0 = (lr_acl_v0_t *)lr; | |
667 | bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes); | |
668 | } else { | |
669 | void *start = (ace_t *)(lr + 1); | |
670 | ||
671 | bcopy(vsecp->vsa_aclentp, start, aclbytes); | |
672 | ||
673 | start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes); | |
674 | ||
675 | if (fuidp) { | |
676 | start = zfs_log_fuid_ids(fuidp, start); | |
677 | (void) zfs_log_fuid_domains(fuidp, start); | |
678 | } | |
679 | } | |
680 | ||
681 | itx->itx_sync = (zp->z_sync_cnt != 0); | |
572e2857 | 682 | zil_itx_assign(zilog, itx, tx); |
34dc7c2f | 683 | } |
15fd2749 CP |
684 | |
685 | #if defined(_KERNEL) && defined(HAVE_SPL) | |
686 | module_param(zfs_immediate_write_sz, long, 0644); | |
687 | MODULE_PARM_DESC(zfs_immediate_write_sz, "Largest data block to write to zil"); | |
688 | #endif |